Can-crimping machine



(No Model.) '2 Sheets-Sheet 1.

J. GOULD, Jr. CAN CRIMPING MACHINE.

No. 542,441. Patented July 9,1895.

Pin I 1 I g JAMES GOULD, JR, or BERKELEY, CALIFORNIA.

CAN-CRHVIPING MACHINE.

SPECIFICATION forming part of Letters Patent No. 542,441, dated July 9,1895.

Application filed March 19, 1895. Serial No. 54.2,387- (No model.)

To all whom it may concern:

Be it known that I, JAMEs GOULD, Jr., a citizen of the United States,residing at Berkeley, Alameda count-y, State of California, haveinvented an Improvement in Can-Crimping Machines; and I hereby declarethe following to be a full, clear, and exact description of the same.

My invention relates to that class of cancrimping machines in which thecrimping is effected by the contact with the flange of the can-head of acrimping bar or surface.

After the heads are put on cans, especially when the operation isperformed by'hand, the flanges of the head do not fit accurately thebody of the can; but inequalities of curvature and small apertures andspaces are left which require to be carefully pressed out by truing upthe parts together; otherwise the can will leak. For the largerinequalities of curvature and fit between the can-cover flange and thebody of the can it has been found that the straight or smooth surfacedcrimping-bar is sufficient in its operation to smooth out theseinequalities; but I have found by experience that for the smallerinequalities, those that may be termed small holes or spaces, thesmooth-surfaced crimping-bar is not sufficient, as it passes over themwithout pressing them out, and these holes or spaces will be left, sothat even after soldering and the most careful previous crimping the canwill leak.

The object of my invention is to provide a crimping-bar adapted for thegeneral operation of crimping and for all inequalities of fit, butparticularly adapted for the smaller holes and spaces which the said baror crimpingsurface is capable of fully straightening out and fittingtogether, so as to prevent leakage, and also especially useful foroperation at the lock-seam, so as to press in the head-flange to thebody at this point.

To this end my invention consists in a crimping-bar, theoperating-surface of which is corrugated, toothed, indented, orserrated,whereby a series of pressing-points is formed, each point beingseparated by an intervening depression or indentation.

Referring to the accompanying drawings for a more complete explanationof my invention, Figure 1 is an end View of my crimpingmachine. Fig. 2is a side View. Fig. 3 is an 'hole open.

enlarged partial cross-section. Fig. 4 is aperspective of one of mycrimping-bars secured to a plate F and laid upon its side.

A is the crimping-bar. It may be in any general shape, but is hereinshown as a flat bar intended for use in a machine, the essential partsof which I shall herein describe.

. The crimping-surface of this bar is formed with a series of distinctpressing-points a, which are separated by intervening depressions orindentations a, so that the edge or working surface of this bar may besaid to be corrugated, toothed, indented, or serrated. Thepressing-points lie in line witheach other, and they are adapted topress against the flange of the can-head to crimp the latter and to takein any slack which may be pressed tight to the can-body. This operationmay be effected in any suitable manner and in any suitable machine, andI have here shown the invention as applied in a machine of which. Brepresents standards which support yokes Z), in which are mounted shafts0, upon which are sprocket-pulleys C, said sprocket-pulleys carrying anendless carrier, such as the chain D, to the links of which are rivetedthe crossbars (1, which form a traveling platform upon which the cans Eare caused to advance and to roll in contact with the crimping-bars A,

which are secured above to suitablesirle and hole between the can-bodyand the canhead flanges will sooner or later be closed up by the contactof that portion of the headflange with one ofthe pressing-points,-whichsaid points press the material together with accuracy and precision,leaving no space nor This result cannot possibly be reached by a plainstraight bar, which would run over these small holes and indentationsand leave them with out the can-head flange ICO being pressed or crimpeddown to the uneven surface of the can-body.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. In a can crimping machine, a crimping bar or surface formed with aseries of aligned, distinct pressing points, separated by interveningdepressions or indentations, and adapted to successively operate uponthe can,

and means for rolling the can in contact therewith.

2. In acan crimping machine, a fixed crimping bar or surface formed witha series of aligned, distinct pressing points, separated by interveningdepressions whereby the contact face of the bar or surface is irregularand broken, in combination with means for rolling the cans in contactwith said-bar or sur- JAMES GOULD, JR.

Witnesses:

HARRY J. LASK, GREGORY L. WALSH.

